Calcite crystals reflecting a blue sky. These are parallel planes of rhombic crystals. Calcite is a very common mineral form of calcium carbonate that is prized by rock collectors for its beauty. Editorial Stock Photo - Afloimages
Calcite crystals reflecting a blue sky. These are parallel planes of rhombic crystals. Calcite is a very common mineral form of calcium carbonate that is prized by rock collectors for its beauty.